<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .main{
            width: 400px;
            height: 300px;
            background-color: red;
            display: flex;
        }
        .main div{
            width: 500px;
            height: 100px;
            background-color: skyblue;
            flex-shrink: 0;
        }
    </style>
</head>
<body>
    <div class="main">
        <div></div>
    </div>
</body>
</html>
